Home / 144,517.09-199,501.77-108,720.76

Finding the Fourth Proportional to 144,517.09, 199,501.77 and 108,720.76

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Solution

The fourth proportional to 144,517.09, 199,501.77 and 108,720.76 is: 150,085.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,517.09 : 199,501.77 = 108,720.76 : x
  2. Step 2: Convert to fraction form
    144,517.09/199,501.77 = 108,720.76/x
  3. Step 3: Cross multiply
    144,517.09x = 199,501.77 × 108,720.76
  4. Step 4: Simplify right side
    144,517.09x = 21,689,984,055.75
  5. Step 5: Solve for x
    x = 21,689,984,055.75/144,517.09
  6. Step 6: Final answer
    x = 150,085.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.